Adding notes for container case sensitive names

Author: SnehaGunda

articles/cosmos-db/databases-containers-items.md

@@ -60,9 +60,9 @@ An Azure Cosmos container is a schema-agnostic container of items. Items in a co
 
 You can set [Time to Live (TTL)](time-to-live.md) on selected items in an Azure Cosmos container or for the entire container to gracefully purge those items from the system. Azure Cosmos DB automatically deletes the items when they expire. It also guarantees that a query performed on the container doesn't return the expired items within a fixed bound. To learn more, see [Configure TTL on your container](how-to-time-to-live.md).
 
-You can use [change feed](change-feed.md) to subscribe to the operations log that is managed for each logical partition of your container. Change feed provides the log of all the updates performed on the container, along with the before and after images of the items. For more information, see [Build reactive applications by using change feed](serverless-computing-database.md). You can also configure the retention duration for the change feed by using the change feed policy on the container. 
+You can use [change feed](change-feed.md) to subscribe to the operations log that is managed for each logical partition of your container. Change feed provides the log of all the updates performed on the container, along with the before and after images of the items. For more information, see [Build reactive applications by using change feed](serverless-computing-database.md). You can also configure the retention duration for the change feed by using the change feed policy on the container.
 
-You can register [stored procedures, triggers, user-defined functions (UDFs)](stored-procedures-triggers-udfs.md), and [merge procedures](how-to-manage-conflicts.md) for your Azure Cosmos container. 
+You can register [stored procedures, triggers, user-defined functions (UDFs)](stored-procedures-triggers-udfs.md), and [merge procedures](how-to-manage-conflicts.md) for your Azure Cosmos container.
 
 You can specify a [unique key constraint](unique-keys.md) on your Azure Cosmos container. By creating a unique key policy, you ensure the uniqueness of one or more values per logical partition key. If you create a container by using a unique key policy, no new or updated items with values that duplicate the values specified by the unique key constraint can be created. To learn more, see [Unique key constraints](unique-keys.md).
 
@@ -72,6 +72,9 @@ An Azure Cosmos container is specialized into API-specific entities as shown in
 | --- | --- | --- | --- | --- | --- |
 |Azure Cosmos container | Container | Table | Collection | Graph | Table |
 
+> [!NOTE]
+> When creating containers, make sure you don’t create a two containers with the same name but different casing. That’s because some parts of the Azure platform are not case sensitive and this can result confusion/collision of telemetry and actions on containers with such names.
+
 ### Properties of an Azure Cosmos container
 
 An Azure Cosmos container has a set of system-defined properties. Depending on which API you use, some properties might not be directly exposed. The following table describes the list of system-defined properties:

articles/cosmos-db/how-to-create-container.md

@@ -12,6 +12,9 @@ ms.author: mjbrown
 
 This article explains the different ways to create an Azure Cosmos container (collection, table, or graph). You can use Azure portal, Azure CLI, or supported SDKs for this. This article demonstrates how to create a container, specify the partition key, and provision throughput.
 
+> [!NOTE]
+> When creating containers, make sure you don’t create a two containers with the same name but different casing. That’s because some parts of the Azure platform are not case sensitive and this can result confusion/collision of telemetry and actions on containers with such names.
+
 ## Create a container using Azure portal
 
 ### <a id="portal-sql"></a>SQL API

articles/cosmos-db/monitor-cosmos-db.md

@@ -31,6 +31,9 @@ The following sections build on this article by describing the specific data gat
 
 ![Azure Monitor for Cosmos DB](media/monitor-cosmos-db/azure-monitor-cosmos-db.png)
 
+> [!NOTE]
+> When creating containers, make sure you don’t create a two containers with the same name but different casing. That’s because some parts of the Azure platform are not case sensitive and this can result confusion/collision of telemetry and actions on containers with such names.
+
 ## View operation level metrics for Azure Cosmos DB
 
 1. Sign in to the [Azure portal](https://portal.azure.com/).